Shock Guard  TGE Series

Product photo
  • A type that can set a wide range of torque with the same size
  • ・The runout can be smaller than that of the TGB series because bearings are used and the center member is attached to that part thru hole.
  • ・Both type-1 that can be installed to small diameter sprockets and wide belt sprockets, and type-3 that A type sprockets and belt sprockets can be directly mounted are applicable.
  • ・Thanks to automatic re-engagement, you only have to turn the drive side after removing the causes of overload.
  • ・The balls and pockets, which transfer the torque, are engaged only in one position because of the unique structure.
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-- Usable sprocket minimum number of teeth -- (Drag to move. )

Usable sprocket minimum number of teeth

・TGE Series

〈Type 1 〉

Model No. Minimum number of teeth for sprockets
RS35 RS40 RS50 RS60 RS80
TGE17-1 18 14 12 - -
TGE25-1 25 20 17 15 12
TGE35-1 32 25 20 18 14
TGE50-1 - 31 26 22 17

This is the minimum number of teeth when the hub of the special B type sprocket is attached to the connection adapter.

〈Type 3 〉

Model No. Minimum number of teeth for sprockets
RS35 RS40 RS50 RS60 RS80
TGE17-3 23 18 15 - -
TGE25-3 32 25 21 18 14
TGE35-3 39 30 25 21 17
TGE50-3 - 40 33 28 22

Note) Sprocket transmissible power is not considered,

Construction

TGE17-1~50-1(Type 1 )

TGE17-1~50-1( Type 1 ) Construction

(1) Hub  (2) Drive plate  (3) Adjustment nut  (4) Coil spring  (5) Drive Ball  (6) Ball bearing

(7) Snap ring  (8) Cover  (9) Thrust bearing  (10) Thrust race  (11) Hex Cap Bolts  (12) Attachment adapter

(13) Hex cap bolt  (14) Spring washer  (15) Dry bearing

TGE17-3~50-3( Type 3 )

TGE17-3~50-3( Type 3 ) Construction

(1) Hub  (2) Drive plate  (3) Adjustment nut  (4) Coil spring  (5) Drive Ball  (6) Ball bearing

(7) Snap ring  (8) Cover  (9) Thrust bearing  (10) Thrust race  (11) Hex set screw

(12) Hex set screw

Operating principle

Animation showing the operating principle of the TGE Series.

During normal operation (engagement)

The TGE series transfers driving force from the hub to the drive plate on the output side via drive balls (and vice versa).

Bolt a sprocket or belt sprocket directly to the drive plate.

The hub flange has several holes to hold the drive balls.
There are pockets on the drive plate on the output side, and the drive balls are pushed by coil springs via the thrust race to be fitted into the pockets to transfer the driving force.

Operating principle

During overload (trip)

If an overload occurs, the drive balls push the thrust race toward the coil springs and come out of the pockets of the drive plate while rotating to release the driving force.

Then, the cover moves toward the coil springs. Therefore, it is easy to stop the drive source automatically after the occurrence of an overload by detecting the amount of movement of the cover using a TG sensor or a similar device.

Reset method

If you restart the operation after the occurrence of an overload, the drive balls automatically return to their positions within one revolution.

If you continue to rotate the TGE series after the occurrence of an overload, the TGE series is repeatedly reset. Therefore, detect overloads using a TG sensor or a similar device and shutdown the drive source immediately.

Package (Standard models )

Set torque range N・m Repeat working torque precision Backlash Reset method
1.0~700 ±5% Low Automatic

■Type 1 :Can be attached to small sprockets and a wide variety of belt sprockets

■Type 3 :Versatile type that can be directly attached to A-type sprockets and belt sprockets

Catalogs ・Instruction Manuals

Model No. Designation

※No-coupling type

TGE 50 - M 3 - TH40JD2 - N245

Series

Size




Type
1:Type 1
3:Type 3

Shaft bore code

Set torque value
N・m
Spring strength
L:Weak spring
M:Medium spring
H:Strong spring
Details regarding shaft bore codes
Shaft bore tolerance Shaft Bore Diameter Keyway tolerance Set screw positioning
T H 40 J D2
T:Shock guard side
F:F7
G:G7
H:H7
Shaft bore diameters are in 1mm units. J:New JIS Js9(Standard )
P:New JIS P9
F:Old JIS F7

[Click to enlarge ]

■Tsubaki model No. navigation

Selected model No. :

*Select each item in order from the left to make sure a valid model number is generated.

Series Size Spring strength Type Shaft Bore Diameter Shaft bore
tolerance
Keyway
tolerance
Set screw positioning Set torque
value
 TGE

1.0

5.0
  N・m

List of Model Numbers

※Click the model No. for detailed information.

Set torque range
N・m
Type 1 Type 3
Range of Shaft Bore Diameters
mm
Model No. Range of Shaft Bore Diameters
mm
Model No.
1.0~5.0 12~15 TGE17-L1 12~17 TGE17-L3
2.0~10 TGE17-M1 TGE17-M3
4.0~20 TGE17-H1 TGE17-H3
5.0~25 12~22 TGE25-L1 12~25 TGE25-L3
10~50 TGE25-M1 TGE25-M3
20~100 TGE25-H1 TGE25-H3
20~100 17~32 TGE35-L1 17~35 TGE35-L3
40~200 TGE35-M1 TGE35-M3
80~400 TGE35-H1 TGE35-H3
30~200 27~48 TGE50-L1 27~50 TGE50-L3
60~400 TGE50-M1 TGE50-M3
120~700 TGE50-H1 TGE50-H3

Options

TG Sensor

The TG Sensor is a Shock Guard specific proximity switch system overload detecting sensor. After detecting Shock Guard overload (movement of plate in the axis direction), the motor can be stopped and the alarm can be signaled.

TG Sensor
AC Type DC Type
Model No. TGS8 TGS8DN
Supply
voltage
Rating AC24~240V -
Range to be used AC20~264V(50/60Hz) DC10~30V
Power consumption Under 1.7mA (at AC200V) Under 16mA
Control output
(opening and closing capacity)
5~100mA Max. 200mA
Indicator lamp Operation indicator
Ambient operating temperature -25~+70℃(Does not freeze. )
Ambient operating humidity 35~95% RH
Output mode - NPN
Operation mode NC
(When not detecting the sensor plate, output opening and closing state is displayed. )
Insulation resistance More than 50MΩ (at DC500V megger) In between the energized part and the case
Mass about 45g (code length 2m) about 56g (code length 2m)
Residual voltage >> Refer to characteristic data Less than 2.0V
(load current 200mA/code length 2m)
Instruction Manuals TG Sensor TGS8 TG Sensor TGS8DN
×
-- Load Residual Voltage Characteristics -- (Drag to move. )

Load Residual Voltage Characteristics

Load Residual Voltage Characteristics

Dimension drawings

AC Type TGS8

AC Type

DC Type TGS8DN

DC Type

Sizing

Our selection calculator will select the right Shock Guard from Tsubaki's entire Shock Guard series to match your usage conditions.

Click the "Sizing" tab at the top of this page.

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Torque adjustment

1.Read the nut height that corresponds to the required torque from the torque correlation charts and tighten the torque adjustment nut to that height (refer to the figure below).
To tighten the torque adjustment nut, loosen the two setscrews, hook a hook spanner (sold separately, refer to the table below) on the notch in the periphery of the nut, and then turn the nut.
The torque of the product does not always match the correlation chart below, so use it as a guide.

Torque adjustment
Hook spanner wrench
Size TGE25 TGE35 TGE50
Spanner No. FK-0070 FK-0092 FK-0105

2.When the torque is determined, write down the torque on the nameplate so that you can easily set the torque to the previous value even after an overhaul.
If you mark matchmarks on both the nut and the edge of the hub, you can reset the torque more precisely.

Torque Correlation Chart

Torque Correlation Chart _TGE17
Torque Correlation Chart _TGE25
Torque Correlation Chart _TGE35
Torque Correlation Chart _TGE50